Le 24-mars-06, à 16:31, 1Z a écrit :
> Bruno Marchal wrote:
>> Le 20-mars-06, à 00:04, John M a écrit :
>>> A Turing machine does nothing (by itself). Don't take
>>> the power for granted. Something has to OPERATE it to
>>> do anything.
>> Why? How could a digital machine distinguish reality, virtual
>> arithmetical reality, etc.
> The question is about what computers are , form a 3rd-person
> not about what a machine would see from its own 1st person perspective.
> We know we have a 1st person perspecitve, and we have 3rd person
> of computers. That is the perspective of John's question. You question
> from a machine's 1st person perspective. We don't even know that
> digitial computers have a 1st-person perspective.
It is our assumption. "I" am conscious and "I" am turing emulable. So
some machine "can think".
> Your question might
> not even
> be valid.
It is enough that the reasoning be valid. If we get a contradiction, we
will abandon comp.
>>> let me draw your attention to one little phrasing in
>>> Hal's (and everybody else's, I presume, as I read
>>> these posts)- text:
>>> "If we assume..."
>>> And if we do not?
>> You will miss the consequences of the assumption. All science is based
>> on implicit or explicit assumption, related to (non definable)
> Almost all science is based on the implicit assumption of a "stuffy"
> world view.
No. This is a simplifying methodological assumption, but there is no
evidence it is necessary. Few physicists use it. Except the week-end
when they doesn't want to be copnfronted with tricky foundational
problems. True, the idea that there is a stuffy universe, and that
"real" = what we measure, is in vogue since Aristotle, but it is
incompatible with comp (this has been proved, I am not speculating. I
can prove it to you if you are interested).
> Therefore, the burden of proof is on those who seek to deny it.
As I just said the proof already exists. See my url). (Not all realises
this, and I don't insist because I like the idea of others finding it
by themselves). But see my url or ask me. I don't pretend it is simple,
but unless denying the 1-3 difference people who study it understand
it, in general.
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